Gas operated firearm



I (No Model.)

. L. S-GHMEISSER.

GAS OPERATED FIREARM;

Patented June 9,1896.

. mega:

UNITED STATES.

[ATENT Erica] Louis scntmi'ssna or;-SUHnL ennnAnnhssrenon TO .THEODOR, t

BERGMANN,10F GAG'GENAU, GERMANY- [GAS-OPERATED FIREARM. I

. SPEGIFIGATiONformiug pm of Letters Patent No. 561,617, dated June 9-, 1896 I Application filed 0mm 14, 1895-. semi rates 549.- rm model.) ,rmma in Switzerlandhiay13,1895,No. 9,79'0.

To aZZ whom it mag/concern Beit known that LLonrsScnnnrssnaacitt zen of Germany, and a resident of Suhl, Th ne ringen, Germany, have invented certain new and useful Improvements in Recoil-Operated whereby the shot must leave the barrel before a backward eifect of the generated gas is pos- I sible in order that during the complete recedin g of the breech-cylinder the shell be thrown out and the gun be cooked again, while during its forward motion a new cartridge be inserted 'in the gum-barrel. In this simplified firearm the breech-sprin g is placed in the breech-bolt instead of under the barrel, and the arran ment is such that the bolt, instead of being stopped in its backward motion by. a strikin g-peg movable therewith, is stopped by a projecting surface of the frame. The latter improvement renders it necessary to have a removable barrel. The present firearm is, moreover, provided with a breech-cover, so that the receiveris closed hermetically on top, as well as'at the sides.

In the accompanying drawings, Figure 1 is a vertical section of the new firearm; Fig. 2, a horizontal section thereof; Fig. 3, a section on the line a: w of Fig. 1. Fig. 4: is a perspective view of the removable lever connecting the barrel with the frame.

13 is the breech-bolt, having two different diameters, in whose axial boring the strikingpin b and the breeclrspring E are placed in such a manner that the springE does not intcrfere in any way with the motion of the pin 1). The spring E is located at one end in the boring and at the other end bears against the inside projection to of the receiver A. By the recoil of the breech-boltB, caused by the pow der-gas, thespring E is compressed, so that after the powder-gas has finished its Work the breech-bolt will bebrought back into its original position. The recoil is limited by the check of the shoulder b upon the inside projecting surface a of the receiver A.

In order'to maintaineasier and toi'ncrea'se' inside the-frameA-it is provided at its lower In order'tha't'the motion of the'breechrbolt the moment of inertia-of the, breech-b01513, v i

' a plateP, with a button or otherhandlep, i'sarofthe threaded-peg 'p' and thegscrewifl, For securing, the screw 19?, whieh -prevents the interfere with its motion; the somewhat flexiin'a corresponding notch of the platejP,

sides. The peculiar construction-"015' the breech-bolt renders, itnecessary that the bar- A,-ana,thus', also, that it be removable.- In

a pivot S, provided with an inden't' s in one breech part; I claimbreech-bolt'having' ahollow in terior and aslot eeiver-frame through the -slot-of the breechbolt, and the spring bearing on the projection, substantially as described." 1

connecting the pin with-the plate P, substantially asdescribed. I

In witness whereof I have hereunto set my hand in presence of two witnesses. LOUIS SCI'IMEISSER.

, Witnesses: a

REINHOLD 'SOMEGELMILCH, STEPH. AUGUST SCHILLING.

and also j for closing the ejection-opening c ranged'npon theouter surface of the frame,- whichis connected with the breech-bolt- B and forms a solid whole therewith by means 7 order to adapt the barrel easily and quickly;- to the frame A and to remove thesame'agaiml 1. In combination,.th'e receiver-frame; the

along its lower side, the projection a within 'the breech-bolt and connected with there;

2'. In combination, the receiver, the breechbolt, the plate P secured to thebreech-bolt, v the firing-pimthe pin '10 for preventing the same from falling out, andthe springearm p striking-pin b from-falling out, but zdoesrnot r ble pin 0 has a projection pfliwhiehzcatches I v 12 Thus the receiver is closed-on top and at the rel-R be introduced inlthe, front of. the frame side mounted to rotate,'.is locatedpartly in" the frame Aand'partly in the barrel R41 -'If the pivot S takes .the. position of Fig. 7-1, it looks the barrel V with'the frame A,. 'but ifjb'y means of the handle s,,it--be turned one .hi ln-f.

dredand-eighty degrees the indent orcut-ou't part s makesitposs'i'ble toremove it from the-- 

